Process of concentrating metallic ores by flotation.



No Drawing. a

nouns. r. YABYAN, or 'ronnno, onio.

rnocnss' orconcnurmrme mn'rALmc cans nx rno'ra'rron.

a To all whom it may concern:

Be it known that I, HOMER T. YAVRYAN, a citizen of the United States,

" Toledo, in the county of Lucas and State of centrating metallic oresby what is known as" Y "-lently agitated with -to'be a full, clear,

Ohio, have inventeda certain n'ew and useiful Process of ConcentratingMetallic Ores by Flotation; and I do declare thefollowing and exactdescription of the invention, such as will enable others skilled in theart to which it appertainsto use the same.

My invention relates to the process of con- The oil flotation process.

' When ores of low grade, such as galena or copper ore,- are finelyground and mixed with I from three to'four parts of water and v10 asmall percentage of certain oils, there is formed a s'tifl froth whichseizes upon and carriesthe metallic particles, which are. thus separatedfrom the quartz and other non-metallic particles.

The froth with its metallic particles floats to the surface. and isallowed to flow off or is froth of the necessary 1 among other agencies,for

removed, carry ng with it the concentrate a.

' ores which'consists magitatmg the ores in and leaving the ganguewhichdoes not attachitself to the froth. The wet concentrate is driedand is now ready for further treatment by. the proper metallurgicalprocess. This flotation process is well understood and need not be heremore particularly described.

The efliciency of the oil or mixture used .in

required to produce a amount and consistency-for thecollection of theore particles. v

There-have been'employed or proposed, producing the p 1 froth andflotation indicated, coal and'pine tars; rude and refined creosote;eucalyptus" 'oil pine oil; cotton seed oil; petroleum and its-products;rosin-oil, and various {mixtures of the. same, with "when agitated. so;oil requisite for quantity-0f .gye; tole'ssen'the time required.

The ob'ect of my V 'increasethe amount and-permanency of the 'frothobtainable from these and other oils 'thwater and ores, and to therebyreduce the quantity and 'costof the the treatment'of a givenSpecification of Letters Patent.

residing at claim and varying results.- These several agents areincluded in my. useherein' Patented. July 11,1916.

Application filed llarch 29, 1916. Seria1No, 87,659. I

for the process, and to increase the percentage of metallic particlesextracted. I attain these results by adding to the 'oil'employe'd thenecessary percentage of a resin'ate of an alkaline metal, such as'soda,potash or lime. As a chemical equivalent of these alkaline metals,ammonia may be substituted and combined with rosin to form resinate ofammonia. I In practice,

by way of illustration, I ob-. tain a superior flotation oil by mixingtogether fi ty per cent. petroleum, fifteen-per cent; pine oil andthirty-five per cent. resinate of soda orresinat'e of ammonia.

Itwill be understood that rosin oil may be substituted for rosln in thepreparation of the resinates. above referred to.

The proportions here given, whileentirelyof course, be varied, asconditionsmay require, without departing from the spi'ritof myinvention.

satisfactory in 'ractice, may,

Having-described my invention, what I.

desireto secure by Letters Patent, 1. The process of concentratingmetallic jcrmminuted form in a mixture of water, oil

and. a suitable resinate, and then, by flotation, recovering the froththus produce: together with its accompanying metallic parthe 'ores'in amixture of water, resmate of; an alkaline metal.

3.1The process of concentrating metallic I ores; which consists inagitating the ores n 'commjinuted form in water to which is added amixture consisting of sixty-five per cent.

r'esinate of oil and thirty-five per cent. sodas-petroleum constitutingupward of fifty per cent. oi the whole,--and then by I flotationrecovering the froth thus produced together with its accompanying.metallic particles.-

In testimon in presence 0 two witnesses. 4

HOMER'T. YARYAN. witnes sesi Gnarnmm Bimcxnng Anion-HALL.

whereof I affix my signature

